1420 | CARDUACEAE 
5.5-6.5 mm. long, obtuse: corolla mostly dd 6 mm. long.—Pinelands, Ever- 
glade Keys, Fla. and Florida Keys.—All ye 
3. M. deltoidea Michx. Stem 8-24 dm. tall, somewhat rough-pubescent, 
often stout, d pias. leaf- beans ovate to deltoid or ovate-hastate 
or deltoid-has ong, obtuse acute, erenate, or serrate, the 
petioles rather Mm e mu ME or numerous, mostly rather short- -peduneled: 
larger bra of the involucre 3.5-5 em. long: pappus of 2-3 bristles with a 
EE Hei -like crown at hae. — Hammocks and coastal pu -dunes, 
n. Fla. and the Keys.— (JF. 7.)—4A1l yea 
4. M. hast Ead Michx. Stem 8-18 dm. tall, ‘scabrous or hispidulous: leaf- 
blades 8-15 em. long, ovate to deltoid in outline, often hastate or hastately 
lobed, crenate Pu se pete. larger bracts of the oo 8-10 mm. long, acumi- 
nate Ais is also the coe chaff: corollas 3-4 mm. long. [M. nivea (Fl. SE. 
S.) M. lobata Small.|]—Along lake a En shores and in damp soil, 
Coastal Plain, Fla. to La. and S. C.—Sum 
5. M.ligulata Small. Stem E 4—7 dm. tall, finely pubescent: leaf-blades 
elongate-linear, mainly 8-16 c . long, irregularly toothed, sometimes saliently 
so at the base: ciun oo of ‘the involucre linear- lanceolate 9-13 mm. long, 
acuminate: corolla . long.—Pinelands, S pen —Spr. 
6. M. Sup conn A. Pug Bs 2-8 dm. tall, is ae d toi linear 
to linear- 4-8 cm. long: oe brac ts re rhombic- 
ovate, acute ong: corolla about 4 m i Bt. lanceolata. it 
SE. Ù. $. 31 Everglades and dos EOM pen: Fla.—(H, I.)—Spr.- 
68. SPILANTHES s Annual or perennial (ours), diffuse or ereeping 
he iid or partly woody plan Leaves a blades relatively broad, often 
toothed. Heads radiate, o inconspicuous, 
"à peduneled; the disk protruding e 
above the involucre by the elongation of the 
receptacle. Involuere campanulate or flat: 
bracts broad, narrowed to the apex. Ligules 
of the ray- -corollas white or yellow. Disk- 
flat e b 
of the disk flattened, mapu Pappus one 
or several awns.—A bout 30 species, of warm 
and Pee regions. 
Americana (M ut.) Hieron. Ste 
= 8 "im. long, often creeping: leaf- blades. ovate to lanceolate, 2-6 cm. long, 
toothed: bracts of the involucre dd pue to En or ovate ‘lanceolate, 4—5 
mm. long: ligules of the ray abou . long: disk ov 
lo [S. repens (Walt.) Michx. x) Lov grounds, Co astal Plain and adj. 
provinces, Fla. to Tex., Mo., and N. C.—Spr.-fall or all year S. 
69. ECHINACEA Moench. Perennial, caulescent herbs. Leaves nor- 
mally alternate: blades RE entire or toothed. Heads e solitary or 
few, conspicuous. Involueres many-flowered, rather flat: bracts in 2—4 series, 
arrow. Receptacle dec hemispherie, ehaffy. Ray Pel several, neu- 
tral, often with imperfect styles: ligules spreading or drooping, purple or 
rose, rarely yellow or white. Disk-flowers perfect, fruit-producing: chaff 
awned, surpassing the flowers, persistent. Achene acutely 4-angled, stout. 
